Cover closing locking mechanism

Abstract

The utility model relates to the field of printers, and discloses a cover closing and locking mechanism, which comprises a base and a turning cover, the turning cover is assembled at the top end of the base, a through hole is arranged on the side wall of the turning cover, a sliding pin and two springs for pushing the sliding pin are arranged in the through hole, an unlocking mechanism is arranged in the base, and a locking mechanism is arranged in the unlocking mechanism. The unlocking mechanism comprises a clamping hole formed in the position, corresponding to the sliding pin, of the side wall of the base. According to the cover closing and locking mechanism, the sliding pin, the base, the cover opening key and the clamping hole are arranged, the sliding pin and the unlocking mechanism are separately arranged, the sliding pin is arranged in the turning cover, the unlocking mechanism is arranged in the base, the base is provided with the cover opening key, the cover opening key is pressed down, the unlocking push block can be pushed to push the sliding pin out of the clamping hole, and therefore unlocking is achieved; the base does not need a larger space, the situation that the sliding pin is blocked or is difficult to unlock due to the limited space is avoided, the pipe position is not limited, the inclined angle is small when the sliding pin is stressed, locking is more stable, unlocking is smoother, and the problem that the space is limited is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, and particularly relates to a cover-closing locking mechanism. Background Art

[0002] Printers are usually divided into a flip cover and a base. The flip cover is rotatably connected to the base. The print head and the rubber roller are respectively arranged on the flip cover and the base. When the flip cover is closed, the print head and the rubber roller are pressed together. Also, since the print head is usually provided with an elastic element, when the rubber roller abuts against the print head, it is subjected to an outward elastic force. In order to prevent the flip cover and the base from separating after being closed, a buckle is usually used for buckling. Due to different structural forms, a sliding pin type locking mechanism is sometimes adopted.

[0003] For such locking mechanisms on the market, the sliding pin and the unlocking mechanism are all arranged on the base, which requires a larger space for the base. Moreover, due to limited space, the length of the sliding pin is set shorter, the pipe position is insufficient, and the inclination angle is larger when stressed, resulting in unstable locking.

[0004] Therefore, a cover-closing locking mechanism is needed to solve the above technical defects. Content of the Utility Model

[0005] The purpose of the utility model is to provide a cover-closing locking mechanism to solve the problem of unstable locking caused by limited space of the sliding pin in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A cover-closing locking mechanism includes a base and a flip cover. The flip cover is assembled on the top of the base. A through hole is provided on the side wall of the flip cover, and a sliding pin and a second spring for pushing the sliding pin are arranged in the through hole. An unlocking mechanism is arranged in the base. The unlocking mechanism includes a card hole provided at a position corresponding to the sliding pin on the side wall of the base. An unlocking push block is arranged in the card hole. An opening cover button is arranged in the base. An inclined plane guide post is arranged below the opening cover button. A fixing block is arranged on the side of the base where the edge of one side of the unlocking push block is upwardly attached. There is a gap between the fixing block and the unlocking push block and they do not contact each other. A spring is arranged between the unlocking push block and the fixing block.

[0007] Preferably, the inclined plane guide post is located at the center position below the opening cover button and abuts against the unlocking push block.

[0008] Preferably, a locking inclined plane and a guiding inclined plane are arranged on one side of the sliding pin that cooperates with the card hole.

[0009] Preferably, the sliding pin is slidably arranged in the flip cover, and one side of the sliding pin that abuts against the unlocking push block remains protruding outside the flip cover.

[0010] Preferably, an elastic printing component is disposed laterally along the length direction inside the base, and a rubber roller is installed at the bottom end of the flip cover at a position corresponding to the elastic printing component.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the cover closing and locking mechanism not only achieves the goal of not getting stuck or being difficult to unlock due to limited space, but also eliminates the buckle buckling structure, the unlocking mechanism is more stable, and the locking pressure and unlocking fluency are taken into consideration;

[0012] (1) The sliding pin, the base, the cover opening button, and the locking hole are provided. The sliding pin and the unlocking mechanism are separately provided. The sliding pin is provided in the flip cover, and the unlocking mechanism is provided in the base. The base is provided with a cover opening button. When the cover opening button is pressed, the unlocking push block can be pushed to push the sliding pin out of the locking hole, thereby achieving unlocking. This makes it unnecessary to have a larger space for the base, and the sliding pin will not get stuck or be difficult to unlock due to limited space. The pipe position is not limited, and the tilting angle when subjected to force is small. The locking is more stable and the unlocking is smoother, thereby solving the problem of limited space.

[0013] (2) The unlocking mechanism includes a cover opening button, an inclined guide column, an unlocking push block, and a spring. The unlocking mechanism includes a cover opening button arranged in the base. When the cover opening button is pressed, an inclined guide column is arranged at the lower part of the cover opening button. The inclined guide column acts on the unlocking push block. The unlocking push block slides and pushes out the sliding pin in the opening hole, thereby achieving unlocking. A spring is arranged between the unlocking push block and the fixed block. When the cover opening button is released, the cover opening button is reset by the spring. Whether opening or locking the cover, it can be solved with one button. The buckle buckle structure is eliminated, and the unlocking mechanism is more stable.

[0014] (3) A guiding bevel, a locking bevel, a sliding pin, and a locking hole are provided. The sliding pin and the locking hole are matched at one end with a guiding bevel and a locking bevel. The sliding pin can be slidably arranged in the flip cover. Under the action of the elastic element, the end of the sliding pin with the bevel remains extended out of the flip cover. When the flip cover is closed, the guiding bevel of the sliding pin contacts the edge of the base and retreats until it encounters the locking hole of the base. The sliding pin slides into the locking hole, thereby locking the flip cover. After locking, the elastic printing component has a reaction force on the flip cover to bounce open. The locking bevel at one end of the sliding pin fits with the upper wall of the locking hole. The innovative sliding pin design ensures that even if the sliding pin is tilted due to the sliding gap, the reverse slope of the locking surface will compensate for it, taking into account both the locking pressure and the unlocking smoothness, and having a longer service life and being less prone to damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of the flip cover of the utility model;

[0016] Figure 2 This is a schematic diagram of the front view structure of the base of the utility model;

[0017] Figure 3 For the present utility model Figure 2 Schematic diagram of the enlarged partial sectional structure at position A in

[0018] Figure 4 Schematic diagram of the enlarged front view structure of the sliding pin of the present utility model;

[0019] Figure 5 Schematic diagram of the front view structure of the open - cover button of the present utility model;

[0020] Figure 6 Schematic diagram of the front view structure of the sliding base of the present utility model.

[0021] In the figure: 1. Flip cover; 2. Sliding pin; 3. Rubber roller; 4. Base; 5. Open - cover button; 6. Card hole; 7. Unlock push block; 8. Fixed block; 9. First spring; 10. Second spring; 11. Locking inclined surface; 12. Guiding inclined surface; 13. Inclined - surface guide post; 14. Elastic printing assembly. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0023] Embodiment 1: Please refer to Figures 1-6 , a closing - cover locking mechanism, including a base 4 and a flip cover 1. The flip cover 1 is assembled at the top of the base 4. A through - hole is provided on the side wall of the flip cover 1. A sliding pin 2 and a second spring 10 for pushing the sliding pin 2 are arranged in the through - hole. An unlocking mechanism is arranged in the base 4. The unlocking mechanism includes a card hole 6 provided at a position corresponding to the sliding pin 2 on the side wall of the base 4. An unlocking push block 7 is arranged in the card hole 6. An open - cover button 5 is arranged in the base 4. An inclined - surface guide post 13 is provided at the lower part of the open - cover button 5. A first spring 9 is arranged between the unlocking push block 7 and the fixed block 8;

[0024] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the sliding pin 2 is separately arranged from the unlocking mechanism. The sliding pin 2 is arranged inside the flip cover 1, and the unlocking mechanism is arranged inside the base 4. The base 4 is provided with an opening button 5. Pressing the opening button 5 can push the unlocking push block 7 to push out the sliding pin 2 from the locking hole 6, thus realizing unlocking. This enables the base 4 to not require a larger space, and the sliding pin 2 will not get stuck or be difficult to unlock or lock due to limited space. The pipe position is not restricted, and the angle of inclination when stressed is relatively small, with more stable locking and smoother unlocking.

[0025] Embodiment 2: The inclined guide post 13 is located at the exact center position below the opening button 5. The inclined guide post 13 abuts against the unlocking push block 7. One side of the sliding pin 2 that cooperates with the locking hole 6 is provided with a locking inclined surface 11 and a guiding inclined surface 12.

[0026] Specifically, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 shown, the unlocking mechanism includes an opening button 5 arranged inside the base 4. Pressing the opening button 5, the lower part of the opening button 5 is provided with an inclined guide post 13. The inclined guide post 13 acts on the unlocking push block 7, and the unlocking push block 7 slides and pushes out the sliding pin 2 inside the opening, thus realizing unlocking. A spring 9 is arranged between the unlocking push block 7 and the fixed block 8. When the opening button 5 is released, the opening button 5 is reset by a spring 9. Whether opening or closing the cover, it can be solved with one key.

[0027] Embodiment 3: The sliding pin 2 is slidably arranged inside the flip cover 1. One side of the sliding pin 2 that abuts against the unlocking push block 7 remains protruding outside the flip cover 1. A fixed block 8 is arranged on the side of the base 4 where the edge of the side that fits upward against one side of the unlocking push block 7. There is a gap between the fixed block 8 and the unlocking push block 7 and they do not contact each other. An elastic printing component 14 is horizontally arranged along the length direction inside the base 4, and a rubber roller 3 is installed at the corresponding position at the bottom end of the flip cover 1.

[0028] Specifically, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, one end of the sliding pin 2 that mates with the locking hole 6 is provided with a guiding inclined surface 12 and a locking inclined surface 11. The sliding pin 2 is slidably disposed within the flip cover 1. Under the action of an elastic element, the end of the sliding pin 2 with the inclined surface remains protruding outside the flip cover 1. When the flip cover 1 is closed, the guiding inclined surface 12 of the sliding pin 2 contacts and retracts along the edge of the base 4 until it encounters the locking hole 6 of the base 4. The sliding pin 2 slides into the locking hole 6, thereby locking the flip cover 1. After locking, the elastic printing assembly 14 exerts a reaction force to push open the flip cover 1. The locking inclined surface 11 at one end of the sliding pin 2 fits against the upper wall surface of the locking hole 6. The innovative design of the sliding pin 2 enables the sliding pin 2 to be compensated for the reverse slope of the locking surface even if it is tilted due to the sliding clearance.

[0029] Working principle: When the present utility model is in use, first, press the open cover button 5. The lower part of the open cover button 5 is provided with an inclined surface guide post 13. The inclined surface guide post 13 acts on the unlocking push block 7, and the unlocking push block 7 slides and pushes out the sliding pin 2 within the opening, thereby achieving unlocking. A spring 9 is disposed between the unlocking push block 7 and the fixed block 8. When the open cover button 5 is released, the open cover button 5 is reset by a spring 9. One end of the sliding pin 2 that mates with the locking hole 6 is provided with a guiding inclined surface 12 and a locking inclined surface 11. The sliding pin 2 is slidably disposed within the flip cover 1. Under the action of an elastic element, the end of the sliding pin 2 with the inclined surface remains protruding outside the flip cover 1. When the flip cover 1 is closed, the guiding inclined surface 12 of the sliding pin 2 contacts and retracts along the edge of the base 4 until it encounters the locking hole 6 of the base 4. The sliding pin 2 slides into the locking hole 6, thereby locking the flip cover 1. After locking, the elastic printing assembly 14 exerts a reaction force to push open the flip cover 1. The locking inclined surface 11 at one end of the sliding pin 2 fits against the upper wall surface of the locking hole 6. Even if the sliding pin 2 is tilted due to the sliding clearance, the reverse slope of the locking surface will compensate for this, completing stable locking and smooth unlocking actions.

[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A lid-closing and locking mechanism, comprising a base (4) and a flip cover (1), characterized in that: A flip cover (1) is assembled at the top of the base (4). A through hole is provided on the side wall of the flip cover (1), and a sliding pin (2) and two springs (10) for pushing the sliding pin (2) are arranged in the through hole. An unlocking mechanism is arranged in the base (4). The unlocking mechanism includes a locking hole (6) provided at a position corresponding to the sliding pin (2) on the side wall of the base (4). An unlocking push block (7) is arranged in the locking hole (6). An opening button (5) is arranged in the base (4). A beveled guide post (13) is arranged at the lower part of the opening button (5). A fixing block (8) is arranged at the edge of the side of the base (4) that is upward and in contact with one side of the unlocking push block (7). There is a gap between the fixing block (8) and the unlocking push block (7) and they do not contact each other. A spring (9) is arranged between the unlocking push block (7) and the fixing block (8).

2. The snap-locking mechanism according to claim 1, characterized in that: The beveled guide post (13) is located at the center position below the opening button (5), and the beveled guide post (13) abuts against the unlocking push block (7).

3. The snap-locking mechanism according to claim 1, characterized in that: A locking bevel surface (11) and a guiding bevel surface (12) are arranged on one side of the sliding pin (2) that cooperates with the locking hole (6).

4. The snap-cover locking mechanism according to claim 1, characterized in that: The sliding pin (2) is slidably arranged in the flip cover (1), and one side of the sliding pin (2) that abuts against the unlocking push block (7) remains protruding outside the flip cover (1).

5. The snap-lock mechanism according to claim 1, characterized in that: An elastic printing assembly (14) is horizontally arranged in the base (4) along the length direction. A rubber roller (3) is installed at the bottom end of the flip cover (1) at a position corresponding to the elastic printing assembly (14).

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